Debian Security Advisory

DSA-2006-1 sudo -- several vulnerabilities

Date Reported:

02 Mar 2010

Affected Packages:

sudo

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 570737.
In Mitre's CVE dictionary: CVE-2010-0426, CVE-2010-0427.

More information:

Several vulnerabilities have been discovered in sudo, a program designed to allow a sysadmin to give limited root privileges to users. The Common Vulnerabilities and Exposures project identifies the following problems:

CVE-2010-0426
It was discovered that sudo when a pseudo-command is enabled, permits a match between the name of the pseudo-command and the name of an executable file in an arbitrary directory, which allows local users to gain privileges via a crafted executable file.
CVE-2010-0427
It was discovered that sudo when the runas_default option is used, does not properly set group memberships, which allows local users to gain privileges via a sudo command.

For the stable distribution (lenny), these problems have been fixed in version 1.6.9p17-2+lenny1

For the unstable distribution (sid), these problems have been fixed in version 1.7.2p1-1.2, and will migrate to the testing distribution (squeeze) shortly.

We recommend that you upgrade your sudo package.

Fixed in:

Debian GNU/Linux 5.0 (lenny)

Source:: http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1.diff.gz; http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1.dsc; http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17.orig.tar.gz
Alpha:: http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_alpha.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_amd64.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_amd64.deb
ARM:: http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_arm.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_arm.deb
ARM EABI:: http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_armel.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_armel.deb
HP Precision:: http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_hppa.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_hppa.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_i386.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_ia64.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_ia64.deb
Little-endian MIPS:: http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_mipsel.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_powerpc.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_s390.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-2+lenny1_sparc.deb; http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-2+lenny1_sparc.deb

MD5 checksums of the listed files are available in the original advisory.